Gate-operating device for ore bins



J. H. LEDEBOER GATE OPERATING DEVICE FOR ORE BINS Filed May 29, 1922 I'i f" l: I; 1:" a 32 E 31 l "w 1L W I W 1 I1 f @511 Q P 33 Fig \1 Patented Sept. 16, 1924.

UNITED STATES JERENIAS H. LEDEBOER, OF THE HAGUE, NETHERLANDS, ASSIGNOR TO FREYN,

1,508,560 PATENT OFFICE.

BRASSERT 8a COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF MAINE.

GATE-OPERATING FOR ORE BINS.

Application filed ma 29, 1922. Serial 110. 564,438.

To all whom it may concern:

Be it known that I, JEREMIAS H. Lann- BonR, a subject of the Queen of the Netherlands, residing at T heHague, in the country 6 of the Netherlands, have invented certain new and useful Improvements in Gate-Operating Devices for Ore Bins, of which the following is a specification. My invention relates to door operating means and has particular reference to an operating device for use particularly in connection with the ore bins and the like which are used for the storage ofore, limestone, coke, and the like, leading outward. from the storage bins within which these supplies are maintained to the scale cars used 1n the operation of a blast furnace plant.

The primary object of my invention is a PIOVlSlOIl of means which are operable in, conjunction withthe placing of the scale cars in proper position before a bin openin so that the bin door is opened and materi allowed to pass from the bin into the scale car until the said car is filled with the desired quantity of material and then the door is allowed to close by gravity, shutting off the flow of material-from the bin into the car. The particular means of operating the bin door which I employ insures the scale v80 cars being placed in proper position under the bin opening before the bin doors can be opened because the operating mechanism in order to engage with the doors must be in proper position with relation to said doors and the operating mechanism carried by the said cars insures that when the operating mechanism is in proper position w1th relation to the bin doors the scale'cars will be ps'operly placed toreceive their lading 0m the b1n.

Another and further object" of my invention is the provision of mechanical door 0 rating means placed upon a scale car so t at there is no possibility of a bin door be- .ing opened without a scale car being in position to receive the material from the bin.

Another and further object of my invention is the provision of means which is simple and efiicient in operation and which can be easily manipulated by the workman handling the ore cars and insures the. proper filling and lading of the scale cars with the material from the bins.

These and other objects of my improved invention will be more fully and better understood by-reference to the accompanying sheet of drawings and in which- Figure 1 is a view artially in elevation and partiallyin section of my improved operating means.

Referring now specifically to the drawin and in which like reference characters re er to like parts throughout, an inclined floor 10 of an ore bin is shown resting upon a diagonally extending supporting beam 11 which in turn is supported by a vertical member 12.. A vertical wall 13 is provided, with a short partition wall 14 extending from the floor 10 u to the vertical wall 13, the said walls 14 being s aced a art such distance as may be desire A b ock 15 is rovided which is'secu'red to the floor 10 or ormed integrall therewith as these bins are usually ma e of concrete and upon which a shaft 16 is mounted, the said shaft 16 extending through the block 15 and forming a pivotal mounting at one side of the door, a similar shaft". being provided at the opposite side of the door opening. An up-, per door 17 is provided which is pivotally mounted upon the shaft 16 by means of arms 18, the upper ends of which are secured to the shaft 16 in any approved manner. A lower door 19 is provided, also mounted upon the shaft 16 by means of a pair of parallel extending arms 20, these arms bemg outside of and adjacent the arms 18 upon which the door 17 is mounted and extend adjacent the ends of the door 17, the arms 20 being longer than the arms 18 so that the'doors 17 and 19 are positioned one above the other, forming a double enclosure for the opening of the bin. Secured to the door 17 is an angle 21 which pro ects a sli ht distance beyond the ends of the door an is adapted to be engaged by a block 22 carried by the arms 20 as the doors are lifted, it being understood that the openin and closing of the door 17 is controlle wholly by the o enin and closing of the door 19. Secure to t e door 19 and projecting outwardly therefrom is a curved arm 23 having a roller 24 mounted thereon at its outer end. The upper portion of a scale car 25 is shown having a member 26 secured to the side thereof within which a guideway 27 is formed and within which the slide 28 of a crosshead 29 is positioned, the

the drawin crosshead 29 being secured to a piston 30 operating in a cylinder 31 which is secured to the member 26 by means of a bracket 32. An'inlet and outlet pipe 33 is secured to the lower end of the cylinder 31 in which there is a port 34, the pipe 33 being adapted to have an air hose attached to the cylinder- 31 for the operation of the piston contained therein which leads to any suitable compressed air supply such as the reservoir usually carried by the scale cars, or may be attached to a hoseleading to any suitable supply of compressed air. The cross head 29 has a member 35 projecting therefrom which is adapted to engage the roller 2% at the end of the arm 23 for the operation of the doors 1? and 19 as the piston 30 is moved up by the admission of compressed air to the cylinder 31.

In the operation of the device, the scale car is brought to a proper position so that the member 35 engages the roller 24 on the outer end of the arm 23, compressed air is admitted to the cylinder 31 thereon through the pipe 33 which raises the piston 30 and with it the crosshead 29 which engages the arm 23 on the lower door 19. Asthe door 19 'is lifted, the block 22 engages on the angle 21 on the door 17 and raises this door also to the position shown in dotted lines in which allows the material to flow from t e bin into the scale car until the desired quantity of material is placedtherein whereupon the air is exhausted from the cylinder 31 and the doors allowed todrop back in position shown in full lines in the drawing, thus closing the bin opening and shutting off the flow of material from the bin whereupon the scale car is removed and when desired, brought back into position so the member 35 will engage the arm 23 for the operation of the device. It will thus be understood that thescale car must be in position to receive the material flowing from the bin before the doors can 1 secured to said scale car,

may suggest or render expedient without departing from the spirit or scope of my mvention.

I claim: 1

1. In combination, an ore bin having a discharge opening, a plui'ality of pivotally mounted spaced gates adapted to open and close said opening, a scale car, a cylinder secured to said scale car, a piston mounted in said cylinder and projecting from one end thereof, a cross-head mounted on said piston, and an arm adapted to be engaged by the cross-head on said iston when said car is in position to receive material discharged through said opening, the said gates being mounted upon common centers but swingin through different arcs.

2. In com ination, an ore bin having a discharge opening, a plurality of pivotally mounted spaced gates adapted to open and close said opening, a scale car, a cyhnder a piston mounted in said cylinder and projecting from one end thereof, a cross-head mounted on said piston, and an arm adapted to be engaged by the cross-head on said piston when said car is in position to receive material discharged through said opening, the said gatesbe ng mounted upon common centers but swinging through difierent arcs, and means on one 0 said gates adapted to engage the other gate whereby the operation of one gate 18 dependent upon the otheri Signed at The Hague, Holland, this first day of May, 1922.

JEREMIAS n. tnnnaona. 

